51858979 has 2 divisors, whose sum is σ = 51858980. Its totient is φ = 51858978.

The previous prime is 51858953. The next prime is 51859019. The reversal of 51858979 is 97985815.

51858979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51858979 - 2¹³ = 51850787 is a prime.

It is not a weakly prime, because it can be changed into another prime (51858379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25929489 + 25929490.

It is an arithmetic number, because the mean of its divisors is an integer number (25929490).

Almost surely, 2^51858979 is an apocalyptic number.

51858979 is a deficient number, since it is larger than the sum of its proper divisors (1).

51858979 is an equidigital number, since it uses as much as digits as its factorization.

51858979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 52.

The square root of 51858979 is about 7201.3178655021. The cubic root of 51858979 is about 372.9133983769.

The spelling of 51858979 in words is "fifty-one million, eight hundred fifty-eight thousand, nine hundred seventy-nine".